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[media] Mantis: use dvb_attach to avoid double dereferencing on module removal
Convert the driver to use the dvb_attach macro to avoid the hard dependency on the frontend drivers. The hard dependecy will result in loading a number of unused frontends, and unwanted automatic dereferencing. This fixes a bug where unloading the mantis driver will derefence any attached frontend twice, which will cause an oops if the same frontend is used by another driver. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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9c81496a88
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@ -57,7 +57,7 @@ static int vp3028_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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if (err == 0) {
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for 10353 (DVB-T)");
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fe = zl10353_attach(&hopper_vp3028_config, adapter);
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fe = dvb_attach(zl10353_attach, &hopper_vp3028_config, adapter);
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if (!fe)
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return -1;
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@ -173,7 +173,7 @@ static int vp1033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for STV0299 (DVB-S)");
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fe = stv0299_attach(&lgtdqcs001f_config, adapter);
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fe = dvb_attach(stv0299_attach, &lgtdqcs001f_config, adapter);
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if (fe) {
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fe->ops.tuner_ops.set_params = lgtdqcs001f_tuner_set;
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@ -82,7 +82,7 @@ static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");
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fe = mb86a16_attach(&vp1034_mb86a16_config, adapter);
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fe = dvb_attach(mb86a16_attach, &vp1034_mb86a16_config, adapter);
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if (fe) {
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dprintk(MANTIS_ERROR, 1,
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"found MB86A16 DVB-S/DSS frontend @0x%02x",
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@ -316,14 +316,14 @@ static int vp1041_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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if (err == 0) {
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mantis_frontend_soft_reset(mantis);
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msleep(250);
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mantis->fe = stb0899_attach(&vp1041_stb0899_config, adapter);
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mantis->fe = dvb_attach(stb0899_attach, &vp1041_stb0899_config, adapter);
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if (mantis->fe) {
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dprintk(MANTIS_ERROR, 1,
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"found STB0899 DVB-S/DVB-S2 frontend @0x%02x",
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vp1041_stb0899_config.demod_address);
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if (stb6100_attach(mantis->fe, &vp1041_stb6100_config, adapter)) {
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if (!lnbp21_attach(mantis->fe, adapter, 0, 0))
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if (dvb_attach(stb6100_attach, mantis->fe, &vp1041_stb6100_config, adapter)) {
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if (!dvb_attach(lnbp21_attach, mantis->fe, adapter, 0, 0))
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dprintk(MANTIS_ERROR, 1, "No LNBP21 found!");
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}
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} else {
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@ -132,7 +132,7 @@ static int vp2033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)");
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fe = tda10021_attach(&vp2033_tda1002x_cu1216_config,
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fe = dvb_attach(tda10021_attach, &vp2033_tda1002x_cu1216_config,
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adapter,
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read_pwm(mantis));
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@ -141,7 +141,7 @@ static int vp2033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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"found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x",
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vp2033_tda1002x_cu1216_config.demod_address);
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} else {
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fe = tda10023_attach(&vp2033_tda10023_cu1216_config,
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fe = dvb_attach(tda10023_attach, &vp2033_tda10023_cu1216_config,
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adapter,
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read_pwm(mantis));
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@ -132,7 +132,7 @@ static int vp2040_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)");
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fe = tda10021_attach(&vp2040_tda1002x_cu1216_config,
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fe = dvb_attach(tda10021_attach, &vp2040_tda1002x_cu1216_config,
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adapter,
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read_pwm(mantis));
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@ -141,7 +141,7 @@ static int vp2040_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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"found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x",
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vp2040_tda1002x_cu1216_config.demod_address);
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} else {
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fe = tda10023_attach(&vp2040_tda10023_cu1216_config,
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fe = dvb_attach(tda10023_attach, &vp2040_tda10023_cu1216_config,
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adapter,
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read_pwm(mantis));
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@ -68,12 +68,12 @@ static int vp3030_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *
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if (err == 0) {
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for 10353 (DVB-T)");
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fe = zl10353_attach(&mantis_vp3030_config, adapter);
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fe = dvb_attach(zl10353_attach, &mantis_vp3030_config, adapter);
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if (!fe)
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return -1;
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tda665x_attach(fe, &env57h12d5_config, adapter);
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dvb_attach(tda665x_attach, fe, &env57h12d5_config, adapter);
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} else {
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dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
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adapter->name,
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